(19)

(11)

EP 2 536 477 A2

(12)

(43) Date of publication: 26.12.2012 Bulletin 2012/52 (21) Application number: 11701561.0 (22) Date of filing: 20.01.2011

(51) International Patent Classification (IPC):  B01D 27/08(2006.01) B01D 35/04(2006.01) B01D 29/15(2006.01) (86) International application number: PCT/GB2011/050095 (87) International publication number: WO 2011/101652 (25.08.2011 Gazette 2011/34)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 18.02.2010 GB 201002771 (71) Applicant: Icon Technology Systems Limited Dunchurch, Warwickshire CV22 6TR (GB)	(72) Inventor: CUPIT, David Dunchurch Warwickshire CV22 6TR (GB) (74) Representative: Bartle, Robin Jonathan  WP Thompson Coopers Building Church Street Liverpool L1 3AB Liverpool L1 3AB (GB)